Queensland Origin star Ben Te'o won't be charged in relation to an assault allegation stemming from an incident in April.

The South Sydney forward had been accused of assaulting Brisbane woman Katie Lewis, who went public with her claims before lodging an official complaint with police.

The allegation has been hanging over Te'o's head for the duration of the Origin series but he has now been informed no action will be taken by Queensland police, who have concluded their investigation.

Te'o has also been cleared by the NRL's integrity unit, which had conducted investigations of its own independent of police enquiries.

Te'o had denied any wrongdoing in the incident, which was alleged to have occurred at the Ashgrove home of Brisbane Broncos player Corey Norman.